Take-up mechanism.



(No Model.)

Patented May 7, l90l J. B. HUMPHREYS. TAKE-UP MECHANISM.

fApplication flled May 24, 1900.)

3 Shee'ts-Shoot l Wfiiizesseoy Patented May 7, l90l.

' J. B. HUMPHBEYS.

TAKE-UP MECHANISM.

(Application filad May 24, 1900) (No Model.)

JAMES BARNES IIUMPHREYS, OF NEW YORK, N. Y., ASSIGNOR TO THE ROBINSCONVEYING BELT COMPANY, OF NEW JERSEY.

TAKE-UP MECHANISM.

SPECIFICATION forming part of Letters Patent No. 673,540, dated May '7,1901.

Application filed May 24, 1900.

To all whom. it may concern:

Be it known that I, JAMES BARNES HUM- PHREYS, of 1&6 East Thirty-seventhstreet, in the city of New York, borough of Manhattan, and State of NewYork, have invented certain new and useful Improvements in Take-UpMechanisms for Pulleys and Shafts, of which the following is adescription, referring to the accompanying drawings.

The object of the invention is to improve certain forms of take-upmechanisms now in use and to protect the mechanism from inury.

The invention is of so simple a nature that it will be readilyunderstood from the preferred form,whicli is shown in theaccompanyingdrawings. In this most preferred form of the invention thescrew is entirely inclosed above and at the sides by the stationarycastiron frame and is therefore not liable to become clogged with rustor dirt. Preferably, also, the screw is provided with a togglewrenchjointed to one of its ends.

In the preferred embodiment of the invention as shown in the drawings,Figure l is a perspective view of my complete mechanism. Fig. 2 is aninverted perspective view. Fig. 3 is a side elevation, partly in centralsection. Fig. 4 is a plan view, partly broken away,.to show detail. Fig.5 is an end view in halfsection. Figs. 6, 7, and 8 are detailed views,partly in section, of the ball-and-socket bearing. Fig. 9 is atransverse section of the bed-plate or frame of the mechanism. Fig. 10is a detailed plan view of the lower member of the travelingpillow-block, and Fig. 11 is a detail of the end-thrust collar for thescrew-shaft.

The frame or bed-plate b is provided with ways from which the travelingpillow-block, formed of two pieces 0 and d, travels. The frame I) isentirely closed at the top and sides, but is open from beneath, like aninverted trough, as plainly shown in Fig. 2. The screw-shaft 6 extendslongitudinally in the trough-shaped space.

The collar f, formed of two pieces bolted together, as in Fig. 11, fitsand is held within the correspondingly-shaped recess 9 and surrounds theneck h of the shaft. This forms the end-thrust bearing for the shaft 6;but

Serial No- 17,803. (No model.)

by separating the two parts of the collar f and removing them from theshaft the shaft may be drawn out of the frame I) for cleaningor repair.of the toggle-wrench j, which is pivoted to the end of the shaft at kand serves to conveniently rotate the shaft, even when the frame I) issecured directly against the floor or other flat surface.

The rotation of the shaft e gives travel to the pillow-block c d. It isscrew-threaded through the nut or block Z, which lies within the recessm of the lower member at of the pillow-block, Fig. 10. The block Zcannot move longitudinally in the recess m, and consequently it givesmovement to the member d, which is bolted directly to the upper member 0of the pillow-block. The pillow-block forms a traveling head, whichsurrounds the bed or frame I? and receives its motion from the protectedshaft e.

The journal-bearing p is preferably of the' ball-and-socket class and isheld upon the pillow-block by the straps r, as will be understood.

Oil or grease is supplied to the bearing by a cup 3, mounted upon thestrap rand delivering the lubricant through the vertical opening 15 inthe strap into the oil-hole v in the ball of the bearing.

The operation of this take-up mechanism is as follows: In assembling theparts the nut Z is placed upon the screw-shaft e and the collarfput inplace to hold the shaft. After the lower member d of the pillow-blockhas been placed in position the upper member 0 may be bolted to it.After this the journalbearingp may be put in place and secured by thestrap 1*. By turning the shaft 6 the pillow-block, and consequently thejournalbearing, may be adjusted along the bed-plate b at will.

The shaft and the nut Z are at all times protected from dust and frominjury. Workmen may walk over or may step upon the frame 1) withoutchance of injury either to themselves or to the mechanism. When thecollarf and the nutl become worn, they may be readily taken out andreplaced at very small expense without necessitating the renewal of anyof the other parts.

The shaft is rotated by means preferred form.

I have now described the invention in its It is of course subject togreatvariation in design.

What I claim as the novel and characteristic features of the invention,by which it may be distinguished from the prior art, are as follows:

1. In combination in a take-up bearing and with the pillow-blockthereof, mechanism for adjusting the pillow-block, and a frameconstituting ways upon which the pillow-block travels and which framecovers and protects said mechanism, substantially as set forth.

2. In combination in a take-up bearing and with the pillow-blockthereof, a screw-shaft for adjusting the pillow-block, and a frame ofinverted -trough shape having ways upon which the pillow-block ismounted to travel, said frame covering and protecting said screwshaft,substantially as set forth.

3. In combination in a take-up bearing and with the pillow-blockthereof, a frame of inverted-trough shape having ways upon which thesaid pillow-block is mounted to travel, a screw-shaft extending in thesaid troughshaped frame, and a detachable nut or head connecting thesaid screw to the said pillowblock, substantially as set forth.

4. In combination in a take-up bearing and with the pillow-blockthereof, a frame of inverted-trough shape having ways upon which thesaid pillow-block is mounted to travel, a screw-shaft extending in thesaid troughshaped frame, and a detachable collar fitting in the saidframe and forming a thrust-bearing for the screw-shaft, substantially asset forth.

Signed this 16th day of April, 1900, at New York, N. Y.

JAMES BARNES HUMPHREYS.

Witnesses:

EDWARD A. FRESHMAN, HAROLD BINNEY.

